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多选题Which is true about OSPF router-id?（）AIt is used for type 1 router LSABHighest IP address of the loopback is usedCrouter-id needs to be matched on ospf neighborsDrouter-id is 16 bit

题目
多选题
Which is true about OSPF router-id?（）
A

It is used for type 1 router LSA

B

Highest IP address of the loopback is used

C

router-id needs to be matched on ospf neighbors

D

router-id is 16 bit

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相似问题和答案

第1题：

Which statement is true about the frequency of OSPF LSA transmissions?()

A.A

B.B

C.C

D.D


参考答案：D

第2题：

Refer to the exhibit. Which statement is true about the configuration? ()

A. RTA will not establish an OSPF adjacency w ith RTB

B. RTA will send OSPF hello packets, but will not send OSPF updates

C. RTA will not accept OSPF hello packets from RTB

D. RTA will send OSPF updates, but will not establish an adjacency with RTB


参考答案：A

第3题：

Of the existing theories about the origin of carnival ，people are not sure which theory is more true to the fact.()


正确答案：对

第4题：

在配置OSPF时，工程师经常使用环回口地址左右router-id，这么做的好处是（）

  • A、环回口是逻辑接口，永远不会down，使用环回口作为router-id可以使OSPF进程更加稳定，减少网络振荡的可能
  • B、环回口是逻辑接口，永远不会down，使用环回口作为router-id可以使OSPF建立邻居时收敛速度更快
  • C、环回口是物理接口，永远不会down，使用环回口作为router-id可以使OSPF进程更加稳定，减少网络振荡的可能
  • D、环回口是逻辑接口，有时也会down，但是使用环回口作为router-id不但可以使OSPF进程更加稳定，也可以加快OSPF邻居的快速收敛，减少网络振荡的可能

正确答案:A

第5题：

True friendship is like sound health,the value ___________is seldom known until it is lost.

A.on which
B.of which
C.about which
D.among which

答案：B
解析：
考查非限定性定语从句。先行词为soundhealth，关系词与value之间为所属关系．所以选用ofwhich。句意为“友谊像健康一样，直到失去才知道它的珍贵”。

第6题：

Refer to the exhibit. The partial configuration for an OSPF ASBR and an Area 0 ABR is shown. Assume the OSPF configurations throughout the network are operable. Which statement about these configurations is true? （）

A. The ASBR route - maps are basically useless, because there are no deny prefix - lists.

B. LSA Type 5s wil l not be received by the ABR from the ASBR.

C. The OSPF backbone will not learn any RFC 1918 addresses.

D. The matched prefix - list addresses will be given a metric of 255, which is essentially unreachable.


参考答案：C

第7题：

Which is true about OSPF router－id?()

A.It is used for type 1 router LSA

B.Highest IP address of the loopback is used

C.router-id needs to be matched on ospf neighbors

D.router-id is 16 bit


参考答案：A, B

第8题：

Referring to the exhibit, which two statements are true?()

A. The route 192.168.1.0/25 is accepted

B. The route 192.168.2.0/24 is accepted

C. OSPF routes will be exported into RIP

D. RIP routes will be exported into OSPF


参考答案：A, D

第9题：

Which is true about OSPF router-id?（）

  • A、It is used for type 1 router LSA
  • B、Highest IP address of the loopback is used
  • C、router-id needs to be matched on ospf neighbors
  • D、router-id is 16 bit

正确答案:A,B

第10题：

When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）

  • A、OSPF hello interval is 5 seconds
  • B、OSPF hello interval is 1 second
  • C、OSPF dead interval is 1 second
  • D、OSPF dead interval is 5 seconds
  • E、OSPF dead interval is 20 seconds
  • F、OSPF hello interval is 0.2 second

正确答案:C,F

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